Q: Is 1,315,440 a Composite Number?

Why is 1,315,440 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 1,315,440 can be evenly divided by 1 2 3 4 5 6 7 8 9 10 12 14 15 16 18 20 21 24 27 28 29 30 35 36 40 42 45 48 54 56 58 60 63 70 72 80 81 84 87 90 105 108 112 116 120 126 135 140 144 145 162 168 174 180 189 203 210 216 232 240 252 261 270 280 290 315 324 336 348 360 378 405 406 420 432 435 464 504 522 540 560 567 580 609 630 648 696 720 756 783 810 812 840 870 945 1,008 1,015 1,044 1,080 1,134 1,160 1,218 1,260 1,296 1,305 1,392 1,512 1,566 1,620 1,624 1,680 1,740 1,827 1,890 2,030 2,088 2,160 2,268 2,320 2,349 2,436 2,520 2,610 2,835 3,024 3,045 3,132 3,240 3,248 3,480 3,654 3,780 3,915 4,060 4,176 4,536 4,698 4,872 5,040 5,220 5,481 5,670 6,090 6,264 6,480 6,960 7,308 7,560 7,830 8,120 9,072 9,135 9,396 9,744 10,440 10,962 11,340 11,745 12,180 12,528 14,616 15,120 15,660 16,240 16,443 18,270 18,792 20,880 21,924 22,680 23,490 24,360 27,405 29,232 31,320 32,886 36,540 37,584 43,848 45,360 46,980 48,720 54,810 62,640 65,772 73,080 82,215 87,696 93,960 109,620 131,544 146,160 164,430 187,920 219,240 263,088 328,860 438,480 657,720 and 1,315,440, with no remainder.

Since 1,315,440 cannot be divided by just 1 and 1,315,440, it is a composite number.

More Examples

• All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).